DIN 7343
DIN 7343, Spiral Pins standard.
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DIN 7343 Spiral Pins as below:
| Size | a | s | d1 | d2 |
| 1 | 0.3 | 0.08 | 1.1 | 0.95 |
| 1.5 | 0.5 | 0.13 | 1.62 | 1.4 |
| 2 | 0.7 | 0.17 | 2.15 | 1.9 |
| 2.5 | 0.8 | 0.21 | 2.65 | 2.35 |
| 3 | 1 | 0.25 | 3.24 | 2.85 |
| 3.5 | 1.2 | 0.29 | 3.67 | 3.35 |
| 4 | 1.3 | 0.33 | 4.2 | 3.8 |
| 5 | 1.7 | 0.42 | 5.25 | 4.8 |
| 6 | 2 | 0.5 | 6.25 | 5.8 |
| 8 | 3 | 0.67 | 8.35 | 7.75 |
| 10 | 3 | 0.84 | 10.45 | 9.6 |
| 12 | 4 | 1 | 12.5 | 11.5 |
| 14 | 4.5 | 1.2 | 14.55 | 13.5 |
| 16 | 5 | 1.3 | 16.55 | 15.4 |
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